baber/WOPTO huggingface dataset:
Patent GB-962728-A (GB)
Title: A method of protecting ground surfaces from the effect of aircraft jet propulsion gas efflux
Inventor: CONWAY HUGH GRAHAM
IPC: E01C9/00
Filed: 1961-04-14
Abstract: 962,728. Landing pads for V.T.O.L. aircraft. SHORT BROS. & HARLAND Ltd. April 4, 1962 [April 14, 1961], No. 13566/61. Heading B7G. [Also in Divisions B5 and E1] A method of protecting the surface of the ground from damage by hot gases from aircraft jet engines (particularly downwardly directed jets), and propulsion rockets, consists in applying to the surface a cover retaining or enclosing an aqueous or other liquid heat-absorbing medium. The cover may consist of a mat of foamed synthetic rubber, or other flexible plastic cellular material, having interconnecting capillary passages, which may be pegged to the ground through peripheral holes and kept filled with water by hosing. Alternatively, the mat may comprise flexible plastic sheet material 12, Fig. 3, having interconnecting internal passages, for example in two staggered layers 13, connected by headers, not shown, and provided with vents 14, 15 for escape of evaporated circulated water. In further modifications, the cover may be formed of units each comprising metal plates 16, Fig. 4, enclosing a space divided by apertured spacers 17, or by a corrugated sheet, into compartments 18 for circulation of cooling medium. Such units may be hinged together, as in Fig. 6, and flexibly interconnected as at 19, for ease of handling and transport.
Patent GB-1411161-A (GB)
Title: Apparatus for the automatic sorting of electrical components
IPC: G01R31/26
Filed: 1973-03-21
Abstract: 1411161 Sorting articles in predetermined groups PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES LTD 21 March 1973 [24 March 1972] 13606/73 Heading B2H An apparatus for automatically sorting electrical components according to the measured value of a given characteristic of the components comprises a plurality of receptacles (one ' of which only is shown at 17) for receiving the sorted components, the receptacles corresponding in number to the groups, and a supply device 9 whose operation is controlled in accordance with the measured values of the components to be sorted and which is operable to supply the components in succession to the appropriate receptacles, the supply device comprising an outlet member 10 which is movable over a matrix of apertures 15 each of which communicates with a corresponding one of the receptacles 17 and which are arranged in rows and columns extending in orthogonal first and second directions X and Y respectively, the outlet member 10 being coupled to first and second driving members 11' and 11 which are movable in the directions X and Y respectively to shift the outlet member to a position above any of the apertures 15, and driving means 1, 2 being provided which operate in steps according to the measured value of each component to move the driving means 11', 11 so as to shift the outlet member to a position above the aperture communicating with the receptacle associated with said measured value. The supply device 9 comprises a telescopic tube having at one end a nozzle which forms the outlet member and which is connected to the driving members 11, 11' which are in the form of rails which cross each other at right angles and are formed with longitudinal slots 12, 12' in which the nozzle 10 is slidably guided. The rails are connected to toothed endless driving belts 7, 7' and 8, 8' meshing with toothed wheels 3, 3' and 4, 4' mounted on shaft 1a, 1b and 2a, 2b, the shafts 1a and 2a being driven by stepping motors 1 and 2 respectively. The apertures 15 are formed in a plate 14 arranged below the rails 11, 11', each aperture communicating with a respective receptacle through a guide tube 16. The components to be sorted are supplied one at a time through the tube 9. According to the measured value of a characteristic of the component to be supplied at a given instant to the nozzle 10, a control pulse is transmitted by a control apparatus (not shown) to cause the motors 1, 2 each to move through a certain number of steps so that the rails 11' and 11 move through corresponding distances in the X and Y directions respectively to shift the nozzle 10 to a supply position in which it is located directly above the particular aperture 15 of the sorting matrix which corresponds to the measured value of the component.
Patent GB-649164-A (GB)
Title: Control apparatus for radio-frequency heating
IPC: H05B6/50
Filed: 1948-05-19
Abstract: 649,164. Automatic current control systems. SINGER MANUFACTURING CO. May 19, 1948, No. 13614. Convention date, Nov. 28, 1947. [Class 38 (iv)] An R.F. heating system comprises an oscillator 21, amplifiers 26, 31, 32 for establishing an R.F. field through which are fed plies 7 of dielectric material of non-uniform thickness to be bonded, and a detector for detecting a departure in the current to the field from a predetermined value. The detector is arranged to translate R.F. quantities into D.C. voltages which are combined into a single voltage varying as the thickness of the load and this voltage is used to control the strength of the R.F. field to restore the current to its predetermined value. A coaxial transmission line 1 is connected at its load end with a shunt inductance coil 2, a series inductance coil 3, a variable condenser 4 and electrodes 5, 6. Pick-up coils 8 and 11 in inductive relation with coils 2 and 3 are connected in series with diode rectifiers 9, 12 and potentiometers 10 and 13 respectively. The diodes are connected so that the voltage across leads 17 and 18 is the difference between the voltage appearing between each slider 14, 15 and the bottom end of potentiometers 10 and 13. When the thickness of the material 7 increases (i.e. the load increases), the current through the load decreases and the voltage across the potentiometer 10 increases, while that across 13 decreases, the single output voltage across leads 17 and 18 varying between a negative value for small thicknesses through zero, for a predetermined thickness to a positive value for large thicknesses. The transmission line 1 is fed by the R.F. oscillator 21, through a driver amplifier 26 and power amplifier 31, 32. The control voltage is applied to the grid 39 of a valve 40, thus varying the plate current of the valve, in turn varying the grid voltage of a cathode follower valve 53. The voltage across a resistance 54 in the cathode lead of this valve is also thereby varied and is applied to the control grids of the driver amplifier 26, thus varying the anode current of amplifier 26 and the current fed to the load, in a sense to compensate for current variations due to varying thickness of dielectric. Specification 604,018, [Group XI], is referred to. In the Specification as open to inspection under Sect. 91 in the control voltage may be derived solely from potentiometer 13, the pickup coil 8 and diode 9 being replaced by a battern giving a fixed D.C. potential (Fig. 4 (Cancelled) not shown). This subject-matter does not appear in the Specification as accepted.
Patent GB-1368192-A (GB)
Title: Extraction of nickel or cobalt values from oxide ores
IPC: C22B23/00
Filed: 1972-03-23
Abstract: 1368192 Recovering Ni and Co from ores INTERNATIONAL NICKEL CO OF CANADA Ltd 23 March 1972 [14 April 1971] 13623/72 Heading C1A Ni and Co values are recovered from ferruginous oxide ores, e.g. limonite or serpentine, by (a) reducing the ore at a temperature of 500- 825 C. in e.g. an atmosphere of CO/CO2, to selectively reduce more Ni and Co than Fe, (b) leaching the reduced ore by forming it into an aqueous slurry with a mineral acid, e.g. H2SO4, HCl or HNO3, aerating the slurry with a free oxygen-containing gas to dissolve Ni and Co values and to ppt. Fe as Fe(OH)3 while maintaining the pH of the solution in the slurry at a pH of 2À5 by the incremental addition of mineral acid, (c) separating the Ni and Co containing solution by, e.g. filtration or countercurrent decantation. S values may be added to the ore before or during the reduction step, either in elemental form or as pyrites (FeS2), pyrrhotite, or H2S, preferably in an amount to give 0À1-2% S content in ore. SO2 may be mixed with the free oxygen-containing gas (air, O2-enriched air or O2) in an amount of 0À25-1 mole per mole Fe in solution. The mineral acid used is preferably H2SO4 since the Ni and Co values can then be recovered from the sulphate solutions formed by treating them with H2S at elevated pressure and at a temperature of 80-130 C. The ratio of CO/CO2 may be in the range 0À5-2À0. The ore may either be in finely divided form, e.g. 80%- 100 mesh (Tyler series), for reduction in rotary kilns, fluidized bed reactors and multihearth furnaces, or be pelletized for reduction in rotary or rotary hearth furnaces. The ore is preferably reduced at 600-725 C. when the Fe content is #30% (limonite) or at 700-825 C. when the Fe content is <30% (HIGH SIO2 ore). The leaching step may be carried out either in batch or continuous mode, the latter in a concurrent system in which both the liquids and solids flow through a series of aerated tanks.
Patent GB-1450666-A (GB)
Title: Inflatable restraint apparatus for vehicle occupants
IPC: B60R21/231
Filed: 1974-03-27
Abstract: 1450666 Vehicle crash bags CHRYSLER CORP 27 March 1974 [2 May 1973] 13658/74 Heading B7B Crash bags 43 and 83 for front seat occupants are stored in a roof space and are connected to sources of gas by tubes 61, 63 and 87 which, when inflated along with the bags, space the bags from the roof and locate them against the occupants' torsos. The tops of the tubes have relief valves to limit the pressure in the inflated bags. If an occupant's head is thrown against a tube, perforations 73 in a strip 71 give way to release a fold in the tube wall and thus to allow some collapse of the tube, Fig. 7 (not shown). There may be forward projections on the bags, Figs. 2 and 3 (not shown), which, on inflation, cooperate with the vehicle dashboard to locate the bags more firmly against the occupants. The bag 43, which acts on passengers 27, 29, is supported by two tubes 61, 63 which are connected to a common gas source at the rear of the vehicle. That source also inflates a side curtain 41 which is also normally stored in the roof and which is connected by straps 75, 77 to the bag 43 to ensure correct deployment of the curtain on inflation. The bag 83 acts on the driver 31 and is inflated from a gas source at the front of the vehicle. That source -also inflates a side curtain on the driver's side of the vehicle. Each side curtain has a set of parallel internal webs 53 which cause the inflated curtain to have the cross-section shown in Fig. 10. In the case of the passenger side curtain, the conduit 37 for inflating the passenger bag passes through the curtain and has apertures 51 for admitting gas to the curtain.
Patent GB-580838-A (GB)
Title: Improvements in method of making pneumatic tyres
IPC: B29D30/42
Filed: 1945-06-01
Abstract: 580,838. Compound sheet materials; weftless cord fabrics. UNITED STATES RUBBER CO. July 1, 1945, No. 13782. Convention date, Aug. 15, 1944. [Class 140] [Also in Group XXXIV] Relates to tyres of the kind described in Specification 565,162, [Group XXXIV], in which the rubber or like elastic material 29 used in the tread zone of the fabric foundation has a low modulus and low hysteresis, that 30 in the seal-wall and bead zone being of high modulus. According to the present invention, strips of the different plastic compositions are assembled side by side to form a graded composite strip which is then calendered on to a strip 21 of bias cord fabric. The latter, produced by ordinary methods embodies cords 10 skimcoated with thin rubber layers and made up with a liner strip into a stock roll 24. This strip is fed between the lower pair of calendered rolls 27. The plastic compositions 29-30 being calendered between the upper pair of rolls. Feeding-spacers 28 and edge-trimming knives 35 are fitted as shown. The composite strip is consolidated by a roller 31 which is pulled towards the delivery side of the calender by a spring 33. The composite plastic layer may extend over the full width of the cord strip or, as indicated in Fig. 10 the edge portions 40 of the latter may be uncovered in some of the plies; and, the cord layer may be similarly faced on both sides. Specification 581,159, [Group XXXIV], also is referred to.
Patent GB-949172-A (GB)
Title: Apparatus for seanning a surface with a beam of charged particles
IPC: G21K1/093
Filed: 1960-03-07
Abstract: 949,172. Particle accelerators. VARIAN ASSOCIATES. March 7, 1960 [March 9, 1959], No. 13839/62. Divided out of 949,171. Drawings to Specification. Heading H1D. The subject-matter of the Specification relates to the scanning magnet used in conjunction with a beam bending magnet in particle accelerator apparatus as described in Specification 949,171.
Patent GB-743579-A (GB)
Title: Noncorrugating fabric
IPC: D03D1/00
Filed: 1952-05-30
Abstract: 743,579. Woven fabrics. CHICOPEE MANUFACTURING CORPORATION. May 30, 1952 [June 18, 1951], No. 13845/52. Drawings to Specification. Class 142 (4). Gauze is woven from yarns which have a twist multiplier not greater than 4.75, 25 to 50 per cent of the warp yarns possessing a twist reverse from that of the remainder of the warp yarns and distributed in a sufficiently regular manner that corrugation is prevented when the fabric is laundered. The yarns may be of cotton and the fabric may form a baby's napkin. Specification 653,176 is referred to.
Patent GB-560610-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B13/00
Filed: 1942-10-06
Abstract: 560,610. Optical objectives. TAYLOR, TAYLOR, & HOBSON, Ltd., WARMISHAM, A., and WYNNE, C. G. Oct. 6, 1942, No, 14036. Drawings to Specification. [Class 97 (i)] In an objective comprising two divergent components located between two simple convergent components and each consisting of a divergent element compounded with a convergent element, the material for one convergent element has mean refractive index between 1.65 and 1.75 and AbbÚ V number between 34 and 27, and the material for the other convergent elements has mean refractive index between 1.7 and 1.8 and AbbÚ V number greater than 50 and preferably less than 58. The one convergent element may be the front one and be of dense flint glass, the other convergent elements being of #-magnesium oxide crystal; the divergent elements may be of another dense flint glass. The contact surfaces of the divergent components may be uncemented and may have radii greater than 1.5 times the equivalent focal length of the objective. Data for one example are set out.
Patent GB-1518591-A (GB)
Title: Epoxy-functional organopolysiloxanes
IPC: C07D241/04
Filed: 1976-04-07
Abstract: 1518591 Epoxy-functional organopolysiloxanes SWS SILICONES CORP 7 April 1976 [7 April 1975] 14094/76 Heading C3T An epoxy-functional organopolysiloxane is prepared by a process which comprises reacting an epoxy-functional organosilicon compound containing a hydrocarbonoxy group with an organocyclopolysiloxane in the presence of a lithium compound. Little, if any, equilibration occurs in the process. The epoxy-functional organosilicon compound may be a silane of the formula or a siloxane of the formula where R<1> denotes a hydrogen atom or a monovalent hydrocarbon radical having up to 18 carbon atoms, or the two R<1> radicals together with the carbon atoms to which they are attached denote a carbocyclic group; R<2> denotes a monovalent hydrocarbon radical of up to 18 carbon atoms; R<3> denotes a divalent hydrocarbon or oxahydrocarbon radical of from 2-18 carbon atoms; R<4> denotes a radical of the formula R<1>O0À5 or R<2>3SiO0À5; X denotes a hydrogen atom or a monovalent organic radical; Z denotes a radical of the formula R<1>O, R<1> or R<2>3SiO; a denotes a positive-integer up to 20,000; b denotes 1, 2 or 3, c denotes 0, 1, 2 or 3 with the proviso that if c denotes o or if no symbol R<4> denotes a radical of the formula R<2>O0À5 then at least one symbol Z must denote the radical R<2>O; d denotes 0, 1, 2 or 3, with the proviso that the average value of d exceeds 0; and e denotes 0, 1 or 2 with the proviso that b + e and d + e do not exceed 3. Preferably R<1> and R<2> denote alkyl groups. The organocyclopolysiloxane preferably has the formula [R<2>2SiO]z where Z is 3 or 4. The lithium compound may be a lithium alkoxide, a lithium alkyl, a lithium alkenyl, a lithium aryl, lithium hydroxide, a lithium hydride or a lithium silanoate. The reaction may be carried out at a temperature of 25-150‹ C. under an inert atmosphere and optionally in the presence of an aprotic solvent, at least part of which has Lewis base characteristics, e.g. tertiary amines, ethers and dimethyl sulphoxide, the rest of the solvent being a hydrocarbon aprotic solvent. After completion of the reaction the lithium compound is preferably removed, e.g. by washing with water or by neutralization with an acid. In the Examples epoxy-functional organopolysiloxanes are prepared either (1) by reacting hexamethylcyclotrisiloxane or octamethyl cyclotetrasiloxane and gamma-glycidoxypropyltrimethoxysilane in the presence of n-butyllithium using benzene and diethylene glycol dimethyl ether as solvent, or (2) by first heating a mixture of gamma-glycidoxypropyltrimethoxy silane, lithium hydroxide, water and methanol, then removing the volatiles and then reacting the product with hexamethylcyclotrisiloxane using benzene and tetrahydrofuran as solvent. The catalyst is neutralized with acetic acid.
Patent GB-477327-A (GB)
Title: Improvements in or relating to the manufacture of cellulose derivative compositions
IPC: C08K5/10
Filed: 1936-05-18
Abstract: A composition consists of or comprises essentially a cellulose ester of an organic acid, particularly cellulose triacetate and as plasticizer or softener an ester having a boiling point of at least 185 DEG  C. and formed from crotonic acid or halogenated crotonic acid and a monohydric alcohol, containing five or more carbon atoms, e.g. amyl, hexyl, octyl, lauryl, or benzyl alcohol, or cyclohexanol, or a dihydric alcohol, e.g. glycols or polyglycols, or monoalkyl derivatives thereof.  Halogenated crotonic esters decrease the inflammability of compositions containing them.  Films containing the above plasticizers also show improved elasticity and may have increased resistance to water vapour penetration.  Examples describe the manufacture of films from cellulose triacetate dissolved in a mixture of methylene chloride and ethyl or methyl alcohol and plasticized with (1) ethylene glycol dicrotonate (prepared by heating glycol with crotonic acid in presence of phosphoric acid and xylene); (2) the di-ester of ethylene glycol with a -b -dibrombutyric acid (obtained by brominating the corresponding crotonic ester); (3) benzyl crotonate (prepared by heating molecular quantities of benzyl alcohol and solid crotonic acid with a catalyst and xylene as water entraining agent) and a small amount of castor oil; (4) lauryl crotonate and a small amount of lauryl alcohol.  A further example describes the preparation of a moulding powder from cellulose aceto - crotonate, cyclohexanol crotonate and resorcinol diacetate.  The Provisional Specification includes the use of esters of hydroxy esters, e.g. triethyl citrate with crotonic acid.
Patent GB-355357-A (GB)
Title: Improvements in containers for fluids under pressure
IPC: E21F17/16
Filed: 1930-05-22
Abstract: 355,357. Storing gases under pressure. BELDIMANO, A., 30, Knesebeckstrasse, Charlottenburg, Berlin. May 22, 1930, No. 14156/31. Divided on 355,338. [Class 8 (ii).] A container for storing fluid under pressure consists of an underground chamber or cavity b formed in natural rock a with a lining d of viscous or solidified material, and a casing or shell c to retain the lining. An entrance of the manhole type gives access to the chamber.
Patent GB-167123-A (GB)
Title: Improvements in paper-box machines
IPC: B31B50/46
Filed: 1920-03-26
Abstract: 167,123. Stephens, A. J., (Kingsbury & Davis Machine Co.). March 26, 1920. Machines for making paper boxes having corner-stay applying-mechanism and crimping- mechanism, as described in Specifications 10729/03 and 164,888. The crimpers 8, 9, Figs. 1 and 3, are actuated bv connection with the corner-stay applying mechanism. The side crimpers 8 are actuated from reciprocating cam plates 23 of the corner-stay mechanism by rods 24 with adjustable collars 25, engaging pins 22 of spring-controlled rockers 16 connected by arms 14 with the crimper carriers 13 so that these are reciprocated in guides 12. The end crimpers 9 are actuated by adjustable hooked bars 32, Figs. 1 and 3, engaging levers 33 pivoted to the machine frame at 33<b> and engaging by means of a pin and cam-slot with a foot 29<a> of the crimper-carrier 29 so that this is reciprocated on a guide-bar fixed to the frame by means of a rod 43 and a block 41 secured by a pin 42. The parts are returned by means of a spring 35.
Patent GB-797286-A (GB)
Title: Fuel supply systems for oil burners
Inventor: OAKLEY ERIC BERNARD
IPC: F23K5/00
Filed: 1955-05-17
Abstract: 797,286. Supplying fuel to burners. NUWAY HEATING PLANTS, Ltd. May 8, 1956 [May 17, 1955], No. 14179/55. Class 75(1) Means for incorporation in a fuel supply system of the kind in which the fuel is heated and circulated in a closed main comprises a body 3 having a first longitudinal passage 4, means, e.g. ports 5, for connecting the first passage into the closed main to form part thereof, a second longitudinal passage 6 extending close to the first passage 4 and connecting one end of the first passage 4 with a delivery outlet 6a leading to the burner and at least one valve in the second passage 6. The two passages are connected by a port 7. The second passage contains a metering valve 10 controlled by a motor 11, a further valve 12 controlled by a temperature or pressure responsive device 13 and/or by a flame failure detecting device or by a device actuated by a low water level and a manual valve 14. A pair of cylindrical cavities 15 extend longitudinally close to the second passage 6 and house electric heating elements controlled by a thermostat 8 accommodated in the second passage 6 adjacent the port 7. A filter 9 surrounds the thermostat 8. Specification 742,080 [Group XXIX] is referred to.
Patent GB-257348-A (GB)
Title: Improvements in fastenings for box files
IPC: A47B63/00
Filed: 1925-05-29
Abstract: 257,348. Baker, G. H., and Walker & Co., Ltd., J. May 29, 1925. Fastenings for boxes.-A fastening for a box file having a hinged flap consists of a hook member f on the flap a and a corresponding abutment e on the side member d of the box file so arranged that when the flap is closed and then pressed the two fastening elements engage, but are released on again applying pressure to the flap. The abutment member e is formed by a bent-over metal strip g, the bent over portion j of which retains the hook in a recess k in the side member d. The hook is formed by bending over a tongue r stamped out of the metal strip n which is secured to the flap a.
Patent GB-725743-A (GB)
Title: Improvements relating to valve-control gears for internal combustion engines
IPC: F01L1/30
Filed: 1953-05-20
Abstract: 725,743. Valve gear. DAIMLER-BENZ AKT.-GES. May 20, 1953 [May 20, 1952], No. 14239/53. Class 7 (6). A valve 4 is opened by a cam 2 acting directly upon the valve stem and is closed by a separate cam 3 acting through a valve lever 6. The lever 6 is pivoted at 8 and its two arms, 6, 7 may be relatively movable and urged together by a helical or torsion spring 9 to ensure that the lever remains in contact with both the cam 3 and the valve stem. The amount of relative movement between the arms 6, 7 may be limited by stops.